| 一株海洋细菌对中肋骨条藻的溶解效应及其溶藻特性 |
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| 引用本文： | 汪辉,刘玲,牛丹丹,刘兆普.一株海洋细菌对中肋骨条藻的溶解效应及其溶藻特性[J].中国环境科学,2011,31(6):971-977. |
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| 作者姓名： | 汪辉 刘玲 牛丹丹 刘兆普 |
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| 作者单位： | 南京农业大学江苏省海洋生物学重点实验室,江苏南京,210095 |
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| 基金项目： | 国家"十二五"科技支撑计划，国家自然科学基金资助项目 |
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| 摘 要： | 从山东胶州湾分离得到1株海洋溶藻菌,暂将其命名为JZ-1.根据生理生化及16S rDNA 序列分析鉴定,菌株JZ-1属于交替单胞菌属(Alteromonas).研究表明,菌株JZ-1对中肋骨条藻具有很好的溶解效果,它能够破坏藻细胞膜内物质的结构和细胞膜的完整性,使细胞膜内物质流出导致藻细胞死亡.溶藻现象发生在细菌培养液的上清液和0.2μm的过滤液中,而不是在细菌菌体中,这表明菌株JZ-1通过分泌代谢物对中肋骨条藻产生溶解作用,且当菌株JZ-1由对数生长期向稳定期过渡时,其代谢物的溶藻率达到最大.代谢物分子量<5kD,具有热稳定性、耐酸性,但不耐碱.
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| 关 键 词： | 海水富营养化 中肋骨条藻 溶藻细菌 溶藻机理 |
| 收稿时间： | 2010-10-07; |
Lysis effect and mechanisum of one bacterial strain on Skeletonema costatum |
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| WANG Hui,LIU Ling,NIU Dan-dan,LIU Zhao-pu.Lysis effect and mechanisum of one bacterial strain on Skeletonema costatum[J].China Environmental Science,2011,31(6):971-977. |
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| Authors: | WANG Hui LIU Ling NIU Dan-dan LIU Zhao-pu |
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| Institution: | WANG Hui,LIU Ling,NIU Dan-dan,LIU Zhao-pu(Key Laboratory of Applied Marine Biotechnology of Jiangsu Province,Nanjing Agricultural University,Nanjing 210095,China) |
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| Abstract: | A strain of marine algae-lysing bacterium designated as JZ-1 was isolated from Jiaozhou Bay,China.Strain JZ-1 showed highly homology with Alteromonas sp.on the basis of morphological and biochemical characteristics and16S rDNA sequence analysis.Strain JZ-1 showed significant algicidal activity against Skeletonema costatum,it broke the materials structures in membrane and membrane integrity,and the materials leak through membrane to make the cells die.In addition,algicidal activity against S.costatum was det... |
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| Keywords: | water bloom Skeletonema costatum algae-lysing bacterium algicidal mode |
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